1. Alibaba Cloud ApsaraDB for PolarDB :
It is a cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. ApsaraDB architecture supported 5000 physical machines in a single cluster. It is designed for business-critical database applications that require fast performance, high concurrency, and automatic scaling.
2. Alibaba Cloud TSDB :
It is a distributed time-series database. It is a stable, reliable, and cost-effective online high-performance database service. It provides efficient data reading and writing capabilities, high-compression-ratio storage, and time-series data interpolation and aggregation.
Difference between Alibaba Cloud ApsaraDB for PolarDB and Alibaba Cloud TSDB :
|S.NO.||Alibaba Cloud ApsaraDB for PolarDB||Alibaba Cloud TSDB|
|1.||It was developed by Alibaba in August 2013.||It was developed by Alibaba.|
|2.||It is a cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle.||It is a stable, reliable, and cost-effective online high-performance time series database service.|
|3.||In Alibaba Cloud ApsaraDB for PolarDB there are hosted server operating systems.||In Alibaba Cloud TSDB there are hosted server operating systems.|
|4.||The license of Alibaba Cloud ApsaraDB for PolarDB is commercial.||The license of Alibaba Cloud TSDB is also commercial.|
|5.||It supports XML format.||It does not support XML format.|
|6.||It supports the Server-side scripting.||It does not support the Server-side scripting.|
|7.||There is only one partitioning method – Sharding.||There are no partitioning methods.|
|8.||It supports SQL query language.||It does not support SQL query language.|
|9.||It supports replication methods.||It does not support replication methods.|
|10.||ApsaraDB for PolarDB provides the concept of Referential Integrity. Hence, there are Foreign Keys.||TSDB does not provide the concept of Referential Integrity. Hence, no Foreign Keys.|
|11.||It supports in-memory capabilities.||It does not support in-memory capabilities.|
|12.||It does not offer any API for user-defined Map/Reduce methods.||It also does not offer any API for user-defined Map/Reduce methods.|
|13.||It supports ACID properties.||It does not support ACID properties.|
|14.||Programming languages supported are Java and Python.||Programming language supported is Java.|
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